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517 lines
18 KiB
Objective-C
517 lines
18 KiB
Objective-C
//
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// Copyright (c) 2019 Open Whisper Systems. All rights reserved.
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//
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#import "TSAccountManager.h"
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#import "AppContext.h"
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#import "AppReadiness.h"
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#import "NSNotificationCenter+OWS.h"
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#import "ProfileManagerProtocol.h"
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#import "SSKEnvironment.h"
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#import "YapDatabaseConnection+OWS.h"
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#import "YapDatabaseTransaction+OWS.h"
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#import <PromiseKit/AnyPromise.h>
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#import <Reachability/Reachability.h>
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#import <SignalCoreKit/NSData+OWS.h>
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#import <SignalCoreKit/Randomness.h>
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#import <SessionMessagingKit/SessionMessagingKit-Swift.h>
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#import <YapDatabase/YapDatabase.h>
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NS_ASSUME_NONNULL_BEGIN
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NSString *const TSRegistrationErrorDomain = @"TSRegistrationErrorDomain";
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NSString *const TSRegistrationErrorUserInfoHTTPStatus = @"TSHTTPStatus";
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NSString *const RegistrationStateDidChangeNotification = @"RegistrationStateDidChangeNotification";
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NSString *const kNSNotificationName_LocalNumberDidChange = @"kNSNotificationName_LocalNumberDidChange";
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NSString *const TSAccountManager_RegisteredNumberKey = @"TSStorageRegisteredNumberKey";
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NSString *const TSAccountManager_IsDeregisteredKey = @"TSAccountManager_IsDeregisteredKey";
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NSString *const TSAccountManager_ReregisteringPhoneNumberKey = @"TSAccountManager_ReregisteringPhoneNumberKey";
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NSString *const TSAccountManager_LocalRegistrationIdKey = @"TSStorageLocalRegistrationId";
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NSString *const TSAccountManager_HasPendingRestoreDecisionKey = @"TSAccountManager_HasPendingRestoreDecisionKey";
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NSString *const TSAccountManager_UserAccountCollection = @"TSStorageUserAccountCollection";
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NSString *const TSAccountManager_ServerAuthToken = @"TSStorageServerAuthToken";
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NSString *const TSAccountManager_ServerSignalingKey = @"TSStorageServerSignalingKey";
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NSString *const TSAccountManager_ManualMessageFetchKey = @"TSAccountManager_ManualMessageFetchKey";
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NSString *const TSAccountManager_NeedsAccountAttributesUpdateKey = @"TSAccountManager_NeedsAccountAttributesUpdateKey";
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@interface TSAccountManager ()
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@property (atomic, readonly) BOOL isRegistered;
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@property (nonatomic, nullable) NSString *cachedLocalNumber;
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@property (nonatomic, readonly) YapDatabaseConnection *dbConnection;
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@property (nonatomic, nullable) NSNumber *cachedIsDeregistered;
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@property (nonatomic) Reachability *reachability;
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@end
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#pragma mark -
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@implementation TSAccountManager
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@synthesize isRegistered = _isRegistered;
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- (instancetype)initWithPrimaryStorage:(OWSPrimaryStorage *)primaryStorage
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{
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self = [super init];
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if (!self) {
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return self;
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}
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_dbConnection = [primaryStorage newDatabaseConnection];
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self.reachability = [Reachability reachabilityForInternetConnection];
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if (!CurrentAppContext().isMainApp) {
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(yapDatabaseModifiedExternally:)
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name:YapDatabaseModifiedExternallyNotification
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object:nil];
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}
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[AppReadiness runNowOrWhenAppDidBecomeReady:^{
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[[self updateAccountAttributesIfNecessary] retainUntilComplete];
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}];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(reachabilityChanged)
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name:kReachabilityChangedNotification
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object:nil];
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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+ (instancetype)sharedInstance
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{
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return SSKEnvironment.shared.tsAccountManager;
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}
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#pragma mark - Dependencies
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- (id<ProfileManagerProtocol>)profileManager {
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return SSKEnvironment.shared.profileManager;
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}
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#pragma mark -
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- (void)setPhoneNumberAwaitingVerification:(NSString *_Nullable)phoneNumberAwaitingVerification
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{
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_phoneNumberAwaitingVerification = phoneNumberAwaitingVerification;
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[[NSNotificationCenter defaultCenter] postNotificationNameAsync:kNSNotificationName_LocalNumberDidChange
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object:nil
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userInfo:nil];
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}
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- (OWSRegistrationState)registrationState
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{
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if (!self.isRegistered) {
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return OWSRegistrationState_Unregistered;
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} else if (self.isDeregistered) {
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if (self.isReregistering) {
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return OWSRegistrationState_Reregistering;
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} else {
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return OWSRegistrationState_Deregistered;
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}
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} else if (self.isDeregistered) {
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return OWSRegistrationState_PendingBackupRestore;
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} else {
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return OWSRegistrationState_Registered;
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}
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}
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- (BOOL)isRegistered
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{
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@synchronized (self) {
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if (_isRegistered) {
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return YES;
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} else {
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// Cache this once it's true since it's called alot, involves a dbLookup, and once set - it doesn't change.
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_isRegistered = [self storedLocalNumber] != nil;
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}
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return _isRegistered;
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}
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}
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- (BOOL)isRegisteredAndReady
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{
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return self.registrationState == OWSRegistrationState_Registered;
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}
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- (void)didRegister
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{
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NSString *phoneNumber = self.phoneNumberAwaitingVerification;
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[self storeLocalNumber:phoneNumber];
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// Warm these cached values.
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[self isRegistered];
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[self localNumber];
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[self isDeregistered];
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[self postRegistrationStateDidChangeNotification];
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}
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+ (nullable NSString *)localNumber
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{
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return [[self sharedInstance] localNumber];
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}
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- (nullable NSString *)localNumber
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{
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NSString *awaitingVerif = self.phoneNumberAwaitingVerification;
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if (awaitingVerif) {
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return awaitingVerif;
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}
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// Cache this since we access this a lot, and once set it will not change.
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@synchronized(self)
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{
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if (self.cachedLocalNumber == nil) {
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self.cachedLocalNumber = self.storedLocalNumber;
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}
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}
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return self.cachedLocalNumber;
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}
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- (nullable NSString *)storedLocalNumber
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{
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@synchronized (self) {
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return [self.dbConnection stringForKey:TSAccountManager_RegisteredNumberKey
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inCollection:TSAccountManager_UserAccountCollection];
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}
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}
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- (nullable NSString *)storedOrCachedLocalNumber:(YapDatabaseReadTransaction *)transaction
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{
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@synchronized(self) {
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if (self.cachedLocalNumber) {
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return self.cachedLocalNumber;
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}
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}
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return [transaction stringForKey:TSAccountManager_RegisteredNumberKey
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inCollection:TSAccountManager_UserAccountCollection];
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}
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- (void)storeLocalNumber:(NSString *)localNumber
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{
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@synchronized (self) {
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[self.dbConnection setObject:localNumber
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forKey:TSAccountManager_RegisteredNumberKey
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inCollection:TSAccountManager_UserAccountCollection];
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[self.dbConnection removeObjectForKey:TSAccountManager_ReregisteringPhoneNumberKey
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inCollection:TSAccountManager_UserAccountCollection];
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self.phoneNumberAwaitingVerification = nil;
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self.cachedLocalNumber = localNumber;
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}
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}
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+ (uint32_t)getOrGenerateRegistrationId:(YapDatabaseReadWriteTransaction *)transaction
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{
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return [[self sharedInstance] getOrGenerateRegistrationId:transaction];
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}
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- (uint32_t)getOrGenerateRegistrationId
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{
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__block uint32_t result;
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[LKStorage writeSyncWithBlock:^(YapDatabaseReadWriteTransaction *_Nonnull transaction) {
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result = [self getOrGenerateRegistrationId:transaction];
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}];
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return result;
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}
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- (uint32_t)getOrGenerateRegistrationId:(YapDatabaseReadWriteTransaction *)transaction
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{
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// Unlike other methods in this class, there's no need for a `@synchronized` block
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// here, since we're already in a write transaction, and all writes occur on a serial queue.
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//
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// Since other code in this class which uses @synchronized(self) also needs to open write
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// transaction, using @synchronized(self) here, inside of a WriteTransaction risks deadlock.
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uint32_t registrationID = [[transaction objectForKey:TSAccountManager_LocalRegistrationIdKey
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inCollection:TSAccountManager_UserAccountCollection] unsignedIntValue];
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if (registrationID == 0) {
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registrationID = (uint32_t)arc4random_uniform(16380) + 1;
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[transaction setObject:[NSNumber numberWithUnsignedInteger:registrationID]
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forKey:TSAccountManager_LocalRegistrationIdKey
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inCollection:TSAccountManager_UserAccountCollection];
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}
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return registrationID;
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}
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- (void)registerForPushNotificationsWithPushToken:(NSString *)pushToken
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voipToken:(NSString *)voipToken
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isForcedUpdate:(BOOL)isForcedUpdate
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success:(void (^)(void))successHandler
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failure:(void (^)(NSError *))failureHandler
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{
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[self registerForPushNotificationsWithPushToken:pushToken
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voipToken:voipToken
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isForcedUpdate:isForcedUpdate
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success:successHandler
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failure:failureHandler
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remainingRetries:3];
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}
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- (void)registerForPushNotificationsWithPushToken:(NSString *)pushToken
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voipToken:(NSString *)voipToken
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isForcedUpdate:(BOOL)isForcedUpdate
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success:(void (^)(void))successHandler
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failure:(void (^)(NSError *))failureHandler
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remainingRetries:(int)remainingRetries
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{
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BOOL isUsingFullAPNs = [NSUserDefaults.standardUserDefaults boolForKey:@"isUsingFullAPNs"];
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NSData *pushTokenAsData = [NSData dataFromHexString:pushToken];
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AnyPromise *promise = isUsingFullAPNs ? [LKPushNotificationAPI registerWithToken:pushTokenAsData hexEncodedPublicKey:self.localNumber isForcedUpdate:isForcedUpdate]
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: [LKPushNotificationAPI unregisterToken:pushTokenAsData];
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promise
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.then(^() {
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successHandler();
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})
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.catch(^(NSError *error) {
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if (remainingRetries > 0) {
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[self registerForPushNotificationsWithPushToken:pushToken voipToken:voipToken isForcedUpdate:isForcedUpdate success:successHandler failure:failureHandler
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remainingRetries:remainingRetries - 1];
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} else {
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failureHandler(error);
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}
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});
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}
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- (void)rerequestSMSWithCaptchaToken:(nullable NSString *)captchaToken
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success:(void (^)(void))successBlock
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failure:(void (^)(NSError *error))failureBlock
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{
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// TODO: Can we remove phoneNumberAwaitingVerification?
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NSString *number = self.phoneNumberAwaitingVerification;
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[self registerWithPhoneNumber:number
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captchaToken:captchaToken
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success:successBlock
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failure:failureBlock
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smsVerification:YES];
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}
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- (void)rerequestVoiceWithCaptchaToken:(nullable NSString *)captchaToken
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success:(void (^)(void))successBlock
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failure:(void (^)(NSError *error))failureBlock
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{
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NSString *number = self.phoneNumberAwaitingVerification;
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[self registerWithPhoneNumber:number
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captchaToken:captchaToken
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success:successBlock
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failure:failureBlock
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smsVerification:NO];
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}
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#pragma mark Server keying material
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+ (NSString *)generateNewAccountAuthenticationToken {
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NSData *authToken = [Randomness generateRandomBytes:16];
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NSString *authTokenPrint = [[NSData dataWithData:authToken] hexadecimalString];
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return authTokenPrint;
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}
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+ (nullable NSString *)signalingKey
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{
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return [[self sharedInstance] signalingKey];
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}
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- (nullable NSString *)signalingKey
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{
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return [self.dbConnection stringForKey:TSAccountManager_ServerSignalingKey
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inCollection:TSAccountManager_UserAccountCollection];
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}
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+ (nullable NSString *)serverAuthToken
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{
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return [[self sharedInstance] serverAuthToken];
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}
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- (nullable NSString *)serverAuthToken
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{
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return [self.dbConnection stringForKey:TSAccountManager_ServerAuthToken
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inCollection:TSAccountManager_UserAccountCollection];
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}
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- (void)storeServerAuthToken:(NSString *)authToken
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{
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[LKStorage writeSyncWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
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[transaction setObject:authToken
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forKey:TSAccountManager_ServerAuthToken
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inCollection:TSAccountManager_UserAccountCollection];
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}];
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}
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- (void)yapDatabaseModifiedExternally:(NSNotification *)notification
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{
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// Any database write by the main app might reflect a deregistration,
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// so clear the cached "is registered" state. This will significantly
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// erode the value of this cache in the SAE.
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@synchronized(self)
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{
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_isRegistered = NO;
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}
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}
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#pragma mark - De-Registration
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- (BOOL)isDeregistered
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{
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// Cache this since we access this a lot, and once set it will not change.
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@synchronized(self) {
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if (self.cachedIsDeregistered == nil) {
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self.cachedIsDeregistered = @([self.dbConnection boolForKey:TSAccountManager_IsDeregisteredKey
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inCollection:TSAccountManager_UserAccountCollection
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defaultValue:NO]);
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}
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return self.cachedIsDeregistered.boolValue;
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}
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}
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- (void)setIsDeregistered:(BOOL)isDeregistered
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{
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@synchronized(self) {
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if (self.cachedIsDeregistered && self.cachedIsDeregistered.boolValue == isDeregistered) {
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return;
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}
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self.cachedIsDeregistered = @(isDeregistered);
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}
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[LKStorage writeWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
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[transaction setObject:@(isDeregistered)
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forKey:TSAccountManager_IsDeregisteredKey
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inCollection:TSAccountManager_UserAccountCollection];
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}];
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[self postRegistrationStateDidChangeNotification];
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}
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- (nullable NSString *)reregisterationPhoneNumber
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{
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NSString *_Nullable result = [self.dbConnection stringForKey:TSAccountManager_ReregisteringPhoneNumberKey
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inCollection:TSAccountManager_UserAccountCollection];
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return result;
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}
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- (BOOL)isReregistering
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{
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return nil !=
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[self.dbConnection stringForKey:TSAccountManager_ReregisteringPhoneNumberKey
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inCollection:TSAccountManager_UserAccountCollection];
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}
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- (BOOL)hasPendingBackupRestoreDecision
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{
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return [self.dbConnection boolForKey:TSAccountManager_HasPendingRestoreDecisionKey
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inCollection:TSAccountManager_UserAccountCollection
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defaultValue:NO];
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}
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- (void)setHasPendingBackupRestoreDecision:(BOOL)value
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{
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[self.dbConnection setBool:value
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forKey:TSAccountManager_HasPendingRestoreDecisionKey
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inCollection:TSAccountManager_UserAccountCollection];
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[self postRegistrationStateDidChangeNotification];
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}
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- (BOOL)isManualMessageFetchEnabled
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{
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return [self.dbConnection boolForKey:TSAccountManager_ManualMessageFetchKey
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inCollection:TSAccountManager_UserAccountCollection
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defaultValue:NO];
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}
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- (AnyPromise *)setIsManualMessageFetchEnabled:(BOOL)value {
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[self.dbConnection setBool:value
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forKey:TSAccountManager_ManualMessageFetchKey
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inCollection:TSAccountManager_UserAccountCollection];
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// Try to update the account attributes to reflect this change.
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return [self updateAccountAttributes];
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}
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- (void)registerForTestsWithLocalNumber:(NSString *)localNumber
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{
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[self storeLocalNumber:localNumber];
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}
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#pragma mark - Account Attributes
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- (AnyPromise *)updateAccountAttributes {
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// Enqueue a "account attribute update", recording the "request time".
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[self.dbConnection setObject:[NSDate new]
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forKey:TSAccountManager_NeedsAccountAttributesUpdateKey
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inCollection:TSAccountManager_UserAccountCollection];
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return [self updateAccountAttributesIfNecessary];
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}
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- (AnyPromise *)updateAccountAttributesIfNecessary {
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if (!self.isRegistered) {
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return [AnyPromise promiseWithValue:@(1)];
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}
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return [AnyPromise promiseWithValue:@(1)];
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NSDate *_Nullable updateRequestDate =
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[self.dbConnection objectForKey:TSAccountManager_NeedsAccountAttributesUpdateKey
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inCollection:TSAccountManager_UserAccountCollection];
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if (!updateRequestDate) {
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return [AnyPromise promiseWithValue:@(1)];
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}
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AnyPromise *promise = [self performUpdateAccountAttributes];
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promise = promise.then(^(id value) {
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[LKStorage writeSyncWithBlock:^(YapDatabaseReadWriteTransaction *transaction) {
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// Clear the update request unless a new update has been requested
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// while this update was in flight.
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NSDate *_Nullable latestUpdateRequestDate =
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[transaction objectForKey:TSAccountManager_NeedsAccountAttributesUpdateKey
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inCollection:TSAccountManager_UserAccountCollection];
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if (latestUpdateRequestDate && [latestUpdateRequestDate isEqual:updateRequestDate]) {
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[transaction removeObjectForKey:TSAccountManager_NeedsAccountAttributesUpdateKey
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inCollection:TSAccountManager_UserAccountCollection];
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}
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}];
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});
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return promise;
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}
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- (void)reachabilityChanged {
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[AppReadiness runNowOrWhenAppDidBecomeReady:^{
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[[self updateAccountAttributesIfNecessary] retainUntilComplete];
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}];
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}
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#pragma mark - Notifications
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- (void)postRegistrationStateDidChangeNotification
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{
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[[NSNotificationCenter defaultCenter] postNotificationNameAsync:RegistrationStateDidChangeNotification
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object:nil
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userInfo:nil];
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}
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@end
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NS_ASSUME_NONNULL_END
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